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MIMO雷达波达方向估计的性能分析 被引量：10

Performance analysis of MIMO radar DOA estimation
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摘要 针对单基地多输入多输出雷达波达方向估计精度问题,推导了单目标情况下波达方向估计的克拉美罗界.结果表明波达方向估计精度取决于收发阵列的导向矢量以及发射信号的相关矩阵,当发射阵元间距为半波长时,多输入多输出雷达波达方向估计的克拉美罗界在大部分角度范围内优于相控阵雷达.多输入多输出雷达还能够通过增大发射阵元间距来得到更小的克拉美罗界,从而获得远优于相控阵雷达的波达方向估计性能. The Cramer-Rao Bound（CRB） for MIMO radar DOA estimation with co-located arrays in a single target scenario is derived, which shows that CRB depends on both the steering vectors of transmit/ receive arrays and the correlation matrix of transmitted waveforma. Compared with traditional phased array radar, MIMO radar has a better DOA estimation performance for most angles. CRB can be further reduced by increasing the spaces between transmit array elements in the MIMO radar system so that MIMO radar can obtain a much better DOA estimation performance than phased array radar. Simulation results validate above conclusions.
作者 杨巍 刘峥
机构地区 西安电子科技大学雷达信号处理重点实验室
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2009年第5期819-824,共6页 Journal of Xidian University
基金 国家部委预研基金资助(9140C0105010702)
关键词 多输入多输出雷达 波达方向估计 克拉美罗界 相关矩阵 MIMO radar DOA estimation Cramer-Rao bound correlation matrix
分类号 TN953.5 [电子电信—信号与信息处理]
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参考文献9

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二级参考文献8

共引文献14

同被引文献56

  • 1赵祎临,任永杰,杨凌辉,林嘉睿.一种基于双目视觉的三维投影标示方法[J].自动化与仪器仪表,2020(4):15-19. 被引量：2
  • 2Chen Duofang, Chen BaiXiao, Qi Guodong. Angle Estimation Using ESPRIT in MIMO Radar [ J]. Electronics Letters, 2008, 44(12) : 770-771.
  • 3Jin Ming, Liao Guisheng, Li Jun. Joint DOD and DOA Estimation for Bistatic MIMO Radar [ J]. IEEE Trans on Signal Processing, 2009, 89(2): 244-251.
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  • 7Yan Haidong, Li Jun, Liao Guisheng. Muhitarget Identification and Localization Using Bistatic MIMO Radar Systems[ J]. EURASIP Journal on Advances in Signal Processing, 2008, 8(2): 1-8.
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引证文献10

二级引证文献19

西安电子科技大学学报
2009年 第5期

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